Dear Markus and Madi,
thanks for your comments !
The problems I had before appeared with the grass version of the 31.10, I downloaded the version of the 30.10 and also reinstalled the r.streams.basins, as suggested by Madi. I could not install the remaining r.stream modules. When I tried to do so I got:
“…
…
7.1.svn\Python27\lib\zipfile.py", line 766, in init
self._RealGetContents()
File “C:\Program Files (x86)\GRASS GIS
7.1.svn\Python27\lib\zipfile.py”, line 807, in
_RealGetContents
raise BadZipfile, “File is not a zip file”
zipfile.BadZipfile: File is not a zip file”
I run r.basin anyways after deleting all files (as suggested by Markus):
r.basin map=map@Elevation prefix=o coordinates=-71.10394196,43.9865230801 threshold=19005 dir=C:\Users\Andrea\Basins
and I got
“…
ERROR: option : <o_map_outlet_snap> exists.
…
Calculating basins using vector point map…
Writing raster map <o_map_basin>…
Delineation of basin done
ERROR: output map <o_map_mask> exists
ERROR: An error occurred while running r.mapcal”
Markus wrote:
"> apparently the overwrite fails or you did not specify --o or old
cruft remained as indicated (please clean it first)"
I deleted all files before running the r.basin command and I do not know how I can set a –o for the file <o_map_outlet_snap> in my r.basin command … I do not know what you mean with the “old cruft” …
I will reinstall grass on Monday or Tuesday with the newest version and will tell you how it goes.
Please be patient and update it again, for us your
feedback is very important.
I still have a lot of patience and am glad to be able to help you a bit! I think grass is really a good thing !!!
Regards,
Andrea
Gesendet: Sonntag, 02. November 2014 um 18:26 Uhr
Von: “Markus Neteler” neteler@osgeo.org
An: “Andrea Timmermann” timmermann@gmx.at
Cc: “GRASS user list” grass-user@lists.osgeo.org, “Margherita Di Leo” dileomargherita@gmail.com
Betreff: Re: Re: Re: Re: [GRASS-user] Problem with r.basin in grass7
HI Andrea,
On Fri, Oct 31, 2014 at 3:18 PM, Andrea Timmermann timmermann@gmx.at wrote:
Hi Markus,
Thanks for your help!
We got some more RAM, changed the basins I was using (got smaller ones) and
reduced the resolution of the computational region, so I hope I do not run
into memory problems.
I downloaded the new grass version and run:
r.basin map=map@Elevation prefix=o coordinates=-71.10394196,43.9865230801
threshold=19005 dir=“C:\Users\Andrea\Basins”
I get:
"…
Number of isles: 0
ERROR: option : <o_map_outlet_snap> exists.
—> apparently the overwrite fails or you did not specify --o or old
cruft remained as indicated (please clean it first).
Reading features…
Writing raster map…
Converted points/lines: 1 of 1
v.to.rast complete.
ERROR: Module built against version $Revision: 62060 $ but trying to use
version $Revision: 62364 $. You need to rebuild GRASS GIS or untangle
multiple installations.
Mhh, “this should not happen” issue. In a winGRASS installer there
should not be any version mixture.
Helli, Martin, any ideas?
[…]
I still have grass 6.4.4 and grass 7.0 installed, maybe I have too many
grasses on my machine ?
No, that should be fine. At time we are doing heavy cleanup in 7, to
get stuff ready for beta4. Perhaps the installer was autogenerated in
a bad moment. Please be patient and update it again, for us your
feedback is very important.
I also have two more questions:
- Should I set the computational region to the whole raster map I am using
or to the vector map defining my basin? (I tried both alternatives and
r.basin writes something a bit different on the screen depending on what I
use)
This is a question for the author of r.basin, I don’t know.
I am using a mask based on my vector map, so maybe the computations are
anyways done only for the area covered by the basin?
… also here.
- You wrote that I might have 24 bytes/cell … How can I find out how many
bytes/cell my raster has? I did not find any information about that and just
would like to know …
Here is an overview, I hope it is right 
http://grasswiki.osgeo.org/wiki/GRASS_raster_semantics
best,
Markus